Core Nutritionals Vitamin D3 - 90ct

Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and multiple other biological effects. In humans, the most important compound in this group is vitamin D3 (also known as cholecalciferol, which is the form found in this product). Shop authentic Core Nutritionals supplements to support performance, recovery, and daily nutrition.